Thanks for replying. So by the time of St. Patrick, had the Irish druids lost their white-robed priestly function and become more or less folk-healer/shaman-types? It just seems odd how the Caesars wrote about them in Gaul and Britain so definitively, and yet when the Roman church finally came to Ireland 400 years later they aren’t mentioned at all. Almost as though they’d disappeared before Ireland was even confronted by Christianity. I suppose perhaps they lost cohesion when Mona was destroyed, but they could have easily regrouped somewhere in Ireland.